Study links Disneyland measles outbreak to low vaccination rates

March 16, 2015 6:09 PM

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Although epidemiologists have not yet identified the person who brought measles to Disneyland, triggering an international outbreak, researchers now say that parents who refuse to vaccinate their kids are probably to blame.

Using some simple math, the researchers show that the vaccination rate among people who were exposed to the measles during the outbreak was no higher than 86%, and it might have been as low as 50%.